PHYS 152 - Exam 1

What is Potential Difference?

• Produces an electric field that affects other nearby charges

• Change in potential energy of a charge from one point to another

• The amount of electric field passing through a surface

• Energy of a charged object in an external electric field

Potential Difference is measured in _____

Since electric force is conservative, the total energy from the _____________ ______ is also conserved

What is an Electron Volt?

• The amount of charge an electron gains when accelerated through an electric field

• The amount of charge an electron gains when accelerated through a potential difference of one volt

• The amount of energy an electron gains when accelerated through an electric field

• The amount of energy an electron gains when accelerated through a potential difference of one volt

What is an Equipotential Surface?

• A surface in space where the potential is the same everywhere

• A surface perpendicular to the direction of an electric field

• A surface in space where the potential varies

• A surface parallel to the direction of an electric field

What is a Capacitor?

• An insulating material that stores the energy associated with a configuration of charges

• An insulating material that reduces the field inside itself

• A device that stores the energy associated with a configuration of charges

• A device that reduces the field inside itself

True or False: A capacitor is a single conductor, oppositely charged on each end

• True

• False

True or False: A capacitor consists of two conductors, with opposite charges facing each other

• True

• False

Charge is never created nor destroyed, rather it is _________.

__________ are materials that let charge flow freely